Interceptor

<template>
  <view style="flex: 1">
    <button @click="addInterceptor">添加路由拦截器</button>
    <button @click="removeInterceptor">移除路由拦截器</button>
    <text>点击下方按钮{{ msg }}</text>
    <button @click="navigateTo">navigatorTo API跳转到测试页面</button>
    <button @click="preventNavigateTo">拦截器阻止 navigatorTo 执行</button>
    <!-- #ifndef MP -->
    <navigator url="./page1">
      <button class="navigatorButton">navigator组件跳转到测试页面</button>
    </navigator>
    <!-- #endif -->
    <button @click="addSwitchTabInterceptor">添加switchTab拦截器</button>
    <button @click="removeSwitchTabInterceptor">移除switchTab拦截器</button>
    <button @click="switchTab">switchTab API</button>
  </view>
</template>

<script setup lang="uts">
  const navigateToInterceptor = {
    invoke: function (options : NavigateToOptions) {
      console.log('拦截 navigateTo 接口传入参数为：', options)
      const url = './page2'
      uni.showToast({
        title: `重定向到页面:${url}`
      })
      options.url = url
    },
    success: function (res : NavigateToSuccess) {
      console.log('拦截 navigateTo 接口 success 返回参数为：', res)
    },
    fail: function (err : NavigateToFail) {
      console.log('拦截 navigateTo 接口 fail 返回参数为：', err)
    },
    complete: function (res : NavigateToComplete) {
      console.log('拦截 navigateTo 接口 complete 返回参数为：', res)
    }
  } as AddInterceptorOptions

  const switchTabInterceptor = {
    invoke: function (options : SwitchTabOptions) {
      console.log('拦截 switchTab 接口传入参数为：', options)
      options.url = '/pages/tabBar/API'
    },
    success: function (res : SwitchTabSuccess) {
      console.log('拦截 switchTab 接口 success 返回参数为：', res)
    },
    fail: function (err : SwitchTabFail) {
      console.log('拦截 switchTab 接口 fail 返回参数为：', err)
    },
    complete: function (res : SwitchTabComplete) {
      console.log('拦截 switchTab 接口 complete 返回参数为：', res)
    }
  } as AddInterceptorOptions

  const msg = ref("会跳转到测试页面1")

  const addInterceptor = () => {
    uni.addInterceptor('navigateTo', navigateToInterceptor)
    uni.showToast({
      title: '页面跳转/切换tabbar已拦截'
    })
    msg.value = "，路由被劫持到测试页面2"
  }

  const removeInterceptor = () => {
    uni.removeInterceptor('navigateTo', navigateToInterceptor)
    uni.showToast({
      title: '拦截器已移除'
    })
    msg.value = "会跳转到测试页面1"
  }

  const addSwitchTabInterceptor = () => {
    uni.addInterceptor('switchTab', switchTabInterceptor)
  }

  const removeSwitchTabInterceptor = () => {
    uni.removeInterceptor('switchTab', switchTabInterceptor)
  }

  const navigateTo = () => {
    uni.navigateTo({
      url: './page1',
      success(res) {
        console.log('res:', res)
      },
      fail(err) {
        console.error('err:', err)
      },
      complete(res) {
        console.log('res:', res)
      }
    })
  }

   const preventNavigateTo = () => {
      const preventNavigateToInterceptor = {
        invoke: function (options : NavigateToOptions) {
            console.log('通过 return false 方式阻止 navigateTo 执行，传入参数为：', options)
            uni.showToast({
              title: '拦截器已阻止跳转'
            })
            return false
          }
      } as AddInterceptorOptions

      uni.addInterceptor('navigateTo',preventNavigateToInterceptor)
      navigateTo()
      uni.removeInterceptor('navigateTo',preventNavigateToInterceptor)
    }

  const switchTab = () => {
    uni.switchTab({
      url: '/pages/tabBar/component',
      success(res) {
        console.log('res:', res)
      },
      fail(err) {
        console.error('err:', err)
      },
      complete(res) {
        console.log('res:', res)
      }
    })
  }

  onUnload(() => {
    // 移除 navigateTo 所有拦截器
    uni.removeInterceptor('navigateTo')
    uni.removeInterceptor('switchTab')
  })

  defineExpose({
    addInterceptor,
    removeInterceptor,
    addSwitchTabInterceptor,
    removeSwitchTabInterceptor,
    navigateTo,
    switchTab,
    preventNavigateTo
  })
</script>